fzca52 tjsj 180823
cwfsju
expires:202509182130;;181065

coastal waters forecast
national weather service san juan pr
423 am ast thu sep 18 2025

puerto rico and the u.s. virgin islands waters


amz712-182130-
coastal waters of northern puerto rico out 10 nm-
423 am ast thu sep 18 2025

.today...east winds 5 to 10 knots. seas around 4 feet. wave detail:
northeast 4 feet at 8 seconds and northwest 1 foot at 8 seconds.
scattered thunderstorms this morning. showers. isolated
thunderstorms this afternoon. 
.tonight...southeast winds 5 to 10 knots. seas 3 to 4 feet. wave
detail: northeast 4 feet at 8 seconds and north 1 foot at 8 seconds.
numerous showers. 
.friday...east winds 5 to 10 knots. seas 3 to 4 feet. wave detail:
northeast 3 feet at 8 seconds and north 1 foot at 8 seconds.
numerous showers in the afternoon. 
.friday night...southeast winds around 5 knots. seas around 3 feet.
wave detail: northeast 3 feet at 8 seconds and northeast 2 feet at
14 seconds. numerous showers. 
.saturday...southeast winds around 5 knots, becoming northeast in
the afternoon. seas 3 to 4 feet. wave detail: northeast 4 feet at
13 seconds and northeast 2 feet at 8 seconds. numerous showers in
the afternoon. 
.saturday night...southeast winds around 5 knots. seas 3 to 4 feet.
wave detail: northeast 4 feet at 12 seconds. numerous showers,
mainly in the evening. 
.sunday...southeast winds around 5 knots, becoming east in the
afternoon. seas around 4 feet. 
.sunday night...east winds 5 to 10 knots, becoming southeast after
midnight. seas around 4 feet. scattered showers. 
.monday...east winds 5 to 10 knots. seas 3 to 4 feet. scattered
showers. 
.monday night...east winds 5 to 10 knots. seas around 3 feet. 

winds and seas higher in and near thunderstorms.

$$

fzca52 tjsj 180823
cwfsju
expires:202509182130;;181070

coastal waters forecast
national weather service san juan pr
423 am ast thu sep 18 2025

puerto rico and the u.s. virgin islands waters


amz735-182130-
coastal waters of southern puerto rico out 10 nm-
423 am ast thu sep 18 2025

.today...east winds 5 to 10 knots. seas 2 to 3 feet. wave detail:
southeast 2 feet at 5 seconds. isolated thunderstorms. 
.tonight...east winds 5 to 10 knots. seas 2 to 3 feet. wave detail:
east 2 feet at 8 seconds and southeast 1 foot at 4 seconds.
scattered showers in the evening, then numerous showers after
midnight. 
.friday...east winds 5 to 10 knots. seas around 2 feet. wave detail:
east 2 feet at 8 seconds and southeast 1 foot at 5 seconds.
scattered showers in the morning. 
.friday night...east winds around 5 knots. seas around 2 feet. wave
detail: east 2 feet at 8 seconds and southeast 1 foot at 5 seconds.
scattered showers. 
.saturday...southeast winds 5 to 10 knots. seas around 2 feet. wave
detail: southeast 1 foot at 5 seconds and east 1 foot at 8 seconds. 
.saturday night...east winds around 5 knots. seas around 2 feet.
wave detail: southeast 1 foot at 5 seconds. 
.sunday...east winds 5 to 10 knots. seas around 2 feet. 
.sunday night...east winds 5 to 10 knots. seas around 2 feet.
scattered showers. 
.monday...east winds 5 to 10 knots. seas around 2 feet. 
.monday night...east winds around 10 knots. seas around 2 feet. 

winds and seas higher in and near thunderstorms.

$$

fzca52 tjsj 180823
cwfsju
expires:202509182130;;181071

coastal waters forecast
national weather service san juan pr
423 am ast thu sep 18 2025

puerto rico and the u.s. virgin islands waters


amz741-182130-
mona passage southward to 17n-
423 am ast thu sep 18 2025

.today...southeast winds 5 to 10 knots. seas around 3 feet. wave
detail: northeast 3 feet at 8 seconds and southeast 2 feet at
5 seconds. isolated thunderstorms. numerous showers early this
morning, then scattered showers late this morning and afternoon. 
.tonight...southeast winds 5 to 10 knots. seas 2 to 3 feet. wave
detail: northeast 2 feet at 8 seconds and north 1 foot at 8 seconds.
numerous showers. 
.friday...southeast winds 5 to 10 knots. seas 2 to 3 feet. wave
detail: northeast 3 feet at 8 seconds and north 1 foot at 8 seconds.
scattered showers. 
.friday night...southeast winds 5 to 10 knots. seas 2 to 3 feet.
wave detail: east 2 feet at 8 seconds and southeast 1 foot at
4 seconds. scattered showers after midnight. 
.saturday...southeast winds 5 to 10 knots. seas around 2 feet. wave
detail: northeast 2 feet at 8 seconds and southeast 1 foot at
5 seconds. scattered showers in the morning. 
.saturday night...east winds 5 to 10 knots. seas around 2 feet. wave
detail: east 2 feet at 8 seconds and northeast 2 feet at 13 seconds.
.sunday...southeast winds 5 to 10 knots. seas around 2 feet.
scattered showers in the morning. 
.sunday night...east winds 5 to 10 knots. seas 2 to 3 feet.
scattered showers. 
.monday...east winds 5 to 10 knots. seas 2 to 3 feet. 
.monday night...east winds 5 to 10 knots, increasing to 10 to
15 knots after midnight. seas 2 to 3 feet. 

winds and seas higher in and near thunderstorms.

$$

fzca52 tjsj 180823
cwfsju
expires:202509182130;;181072

coastal waters forecast
national weather service san juan pr
423 am ast thu sep 18 2025

puerto rico and the u.s. virgin islands waters


amz742-182130-
coastal waters of northwestern puerto rico out 10 nm-
423 am ast thu sep 18 2025

.today...southeast winds around 5 knots. seas 2 to 4 feet. wave
detail: northeast 3 feet at 7 seconds and south 1 foot at 4 seconds.
isolated showers this morning, then numerous showers with isolated
thunderstorms this afternoon. 
.tonight...southeast winds around 5 knots. seas 2 to 3 feet. wave
detail: northeast 2 feet at 7 seconds and south 1 foot at 4 seconds.
.friday...southeast winds 5 to 10 knots. seas 2 to 3 feet. wave
detail: north 2 feet at 7 seconds and south 1 foot at 3 seconds.
showers and scattered thunderstorms in the afternoon. 
.friday night...east winds around 5 knots. seas 2 to 3 feet. wave
detail: north 2 feet at 7 seconds and south 1 foot at 3 seconds.
numerous showers in the evening. 
.saturday...southeast winds 5 to 10 knots. seas around 2 feet. wave
detail: north 2 feet at 14 seconds and south 1 foot at 3 seconds.
scattered showers in the afternoon. 
.saturday night...east winds around 5 knots. seas around 2 feet.
wave detail: north 2 feet at 13 seconds and south 1 foot at
3 seconds. scattered showers in the evening. 
.sunday...southeast winds 5 to 10 knots. seas around 2 feet. 
.sunday night...east winds around 5 knots. seas 2 to 3 feet. 
.monday...east winds around 5 knots. seas 2 to 3 feet. scattered
showers in the afternoon. 
.monday night...east winds 5 to 10 knots. seas 2 to 3 feet.
scattered showers. 

winds and seas higher in and near thunderstorms.

$$

fzca52 tjsj 180823
cwfsju
expires:202509182130;;181073

coastal waters forecast
national weather service san juan pr
423 am ast thu sep 18 2025

puerto rico and the u.s. virgin islands waters


amz745-182130-
coastal waters of southwestern puerto rico out 10 nm-
423 am ast thu sep 18 2025

.today...southeast winds 5 to 10 knots. seas around 2 feet. wave
detail: southeast 1 foot at 4 seconds and northwest 1 foot at
9 seconds. isolated thunderstorms this morning. scattered showers. 
.tonight...southeast winds 5 to 10 knots. seas around 2 feet. wave
detail: southeast 1 foot at 4 seconds and north 1 foot at 8 seconds.
.friday...southeast winds 5 to 10 knots. seas around 2 feet. wave
detail: southeast 1 foot at 3 seconds and north 1 foot at 8 seconds.
scattered showers in the afternoon. 
.friday night...east winds 5 to 10 knots. seas around 2 feet. wave
detail: southeast 1 foot at 3 seconds and north 1 foot at 8 seconds.
.saturday...southeast winds 5 to 10 knots. seas around 2 feet. wave
detail: southeast 1 foot at 4 seconds and north 1 foot at 8 seconds.
.saturday night...east winds 5 to 10 knots. seas 1 foot or less.
wave detail: southeast 1 foot at 4 seconds and north 1 foot at
8 seconds. 
.sunday...southeast winds 5 to 10 knots. seas 1 foot or less. 
.sunday night...east winds 5 to 10 knots. seas 1 foot or less. 
.monday...southeast winds around 5 knots. seas 1 foot or less. 
.monday night...east winds 5 to 10 knots. seas 1 foot or less. 

winds and seas higher in and near thunderstorms.

$$